You should confirm which packages your F-150 has. The 11k tow rated ones are a needle in a haystack. Still, you should be over 7500 pounds. You will likely be limited by the payload if you have the 3.5L Ecoboost. Check your driver's door sticker for max combined weight of occupants and cargo. If you have over 1500 pounds, then you will likely be fine with any trailer under 6k dry.
Towing any high walled RV will be more work for the truck than your boat. It's more about aerodynamics as long as he weights work for you.
